Explanation:

Here’s an explanation for each statement and option:

- Bargaining for wage:

Pressure groups, like trade unions, often bargain for better wages for their members in capitalist economies.

- To demand better work conditions:

Such groups also push for improved working conditions, safety, and welfare at the workplace.

- To demand better employer and employee relations:

Pressure groups try to foster harmonious relations between employers and employees, ensuring disputes are resolved and communication channels remain open.

Option Analysis:

- Option 1: 1 only — Covers only wage bargaining (Incomplete).

- Option 2: 2 and 3 only — Excludes wage bargaining (Incomplete).

- Option 3: 1 and 3 only — Misses work condition demands (Incomplete).

- Option 4: 1, 2 and 3 — Includes all three core functions, making it the most accurate.

Correct Answer: Option 4: 1, 2 and 3